Here is a new finger print security system project which uses R303/R305 module. A previous finger print security system project published on this site uses SM630. its available here. R305 module is almost half the price of SM630. So we are giving a new security system project with R303/R305 module.

The AT89S52 microcontroller is used in this project to control the R305 fingerprint module. The features of R305 is given below.
Power DC 4.5V-6.0V
Interface UART(TTL logical level)/ USB 1.1
Working current Typical: 100mA Peak: 150mA
Matching Mode 1:1 and 1:N
Image acquiring time <0.5s
Storage capacity 256
Security level 5 (1, 2, 3, 4, 5(highest))
Even though it can store 256 fingers, in this project we are using only 100 fingerprints.